I bought an airport extreme to use for my net cafe when I was using a satelite dish to get net. Now things have changed and I am going to use a 3G dongle to get data. I noticed the airport extreme has USB port in the back of it. Is it possible to plug the dongle into the airport extreme to make a wifi network? I know that I can use internet sharing from one of my macs but for a variety of reasons would prefer to use the airport extreme. what is the best way to make a cafe with my set up? Did my airport extreme just become redundant? Also is internet sharing from a Mac as fast as what a router can deliver? The 3G where I am is not that fast so I am trying to avoid any loss in data transmission. Any advice would be helpful. Thanks in advance.